Chromium tribromide

The addition of trichloro- ortetrachloroethylene to aluminium components in dry cleaning equipments is responsible for many accidents. The effect of the carbon tetrachloride/methanol mixture in the 1/9 proportion of aluminium, magnesium or zinc causes the dissolution of these metals, whose exothermicity makes the interaction dangerous. There is a period of induction with zinc, which is cancelled out when copper dichloride, mercury dichloride or chromium tribromide is present. [Pg.277]

M. W. Perkovic, M. J. Heeg, and J. F. Endicott, Inorg. Chem., 30, 3140 (1991). Stereochemical Perturbations of the Relaxation Behavior of (-E)Cr(llI). Ground-State X-Ray Crystal Structute, Photophysics, and Molecular Mechanics Simulations of the Quasi-Cage Complex [4,4, 4"-Ethylidynetris(3-azabutan-l-amine)]chromium Tribromide. [Pg.139]

Hexahydrate, at least two isomeric forms exist. Dibronto-tetraaquochromium bromide dihydrate, [CrBr2(H20)JBr. -2K20 green, deliquesc crystals sol in water, ale. Hexaaquo-chromium tribromide, (CriHjO)JBrj violet, deliquesc crystals sol in water insol in ale. Both forms practically insol in ether. [Pg.345]

CsCrOS CERIUM CHROMIUM TRIOXIDE 520 CrBr3 CHROMIUM TRIBROMIDE 559... [Pg.1906]

A complex formed from a chiral sulfonamide, chromium tribromide, Fe(tmhd)3, triethylamine, and manganese catalyzes the enantioselective allylation of aldehydes with 3-bromo-2-halopropenes in the presence of trimethylsilyl chloride and 2,6-lutidine (Scheme 4-319). The yields are in general good and the products are obtained with... [Pg.732]

Aluminum phosphide Amyl trichlorosilane Benzoyl chloride Boron tribromide Boron trifluoride Boron trifluoride etherate Bromine pentafluoride Bromine trifluoride n-Butyl isocyanate Butyllithium Butyric anhydride Calcium Calcium carbide Chlorine trifluoride Chloro silanes Chlorosulfonic acid Chromium oxychloride Cyanamide Decaborane Diborane... [Pg.61]

Acrylic acid, Initiator, Water, 1148 Aluminium chloride, Water, 0062 Barium peroxide, Propane, 0216 1,3-Benzodithiolium perchlorate, 2677 1,1 -Bis(fluorooxy)tetrafluoroethane, 0641 Borane-tetrahydrofuran, 0138 Boron tribromide, Water, 0122 Bromine, Aluminium, Dichloromethane, 0261 Bromine, Tungsten, Tungsten trioxide, 0261 f 1,3-Butadiene, 1480 Calcium oxide, Water, 3937 Chlorine trifluoride, Refractory materials, 3981 Chromium trioxide, Acetic acid, 4242 Copper(II) oxide, Boron, 4281 Diazoacetonitrile, 0675 Dihydroxymaleic acid, 1447 Ethyl azide, 0872... [Pg.170]

Aqua-1,2-diaminoethanediperoxochromium(IV), 0961 Aqua-1,2-diaminopropanediperoxochromium(IV) dihydrate, 1332 fraws-Aquadioxo(terpyridine)ruthenium(2+) diperchlorate, 3680 Aquafluorobis(l, lO-phenanthroline)chromium(III) perchlorate, 3840 Aquaglycinatonitratocopper, see Copper(II) glycinate nitrate, 0901 Argon, 0091 Arsenic, 0092 Arsenic pentaazide, 0103b Arsenic pentafluoride, 0095a Arsenic pentaoxide, 0106 Arsenic trichloride, 0094 Arsenic trioxide, 0105 Arsenic trisulfide, 0108 Arsenous triazide, see Triazidoarsine, 0103a Arsine—boron tribromide, 0101 f Arsine, 0100... [Pg.2046]

Metal Halides. Reacts explosively or violently with the following calcium bromide iron(III) bromide or chloride iron(II) bromide or iodide cobalt(II) chloride silver fluoride all four mercury(II) halides copper(I) chloride, bromide or iodide copper(II) chloride and bromide ammonium tetrachlorocuprate zinc and cadmium chlorides, bromides, and iodides aluminum fluoride, chloride, and bromide thallium bromide tin(II) or (IV) chloride tin(IV) iodide arsenic trichloride and triiodide antimony and bismuth trichlorides, tribromides, and triiodides vanadium(V) chloride chromium(IV) chloride manganese(II) and iron(II) chlorides and nickel chloride, bromide, and iodide.17,22"25... [Pg.485]

The synthesis of cyclopropyl carbyne complexes follows the general Fischer synthesis of carbyne complexes from alkoxycarbene complexes typical of transition metals of group 6 (Cr, Mo, W). Thus, addition of cyclopropyllithium to chromium and tungsten hexacar-bonyl followed by alkylation of the acylmetallate intermediate with triethyloxonium fluo-roborate gave cyclopropyl ethoxycarbene complexes which, upon subsequent reaction with boron tribromide at -25 °C, afforded the corresponding /ra 5 -bromotetracarbonyl cyclopropylcarbyne complexes (equation 91). However, whereas the monotungsten... [Pg.534]

With activated manganese dioxide as the oxidizing agent, the yield was only 1 %. Attempted oxidations with silver carbonate, chromium trioxide, and lead tetraacetate were unsuccessful. 2-(Methoxyphenyl)tellurophenes were converted to 2-(hydroxyphenyl)tellurophenes upon treatment with sodium ethanethiolate or boron tribromide. ... [Pg.746]

Three studies of titanium(m) compounds have been described. Full details have now been given of the five-co-ordinate bis(trimethylamino)titanium tribromide structure which has trigonal-bipyramidal geometry. The titanium co-ordination polyhedron has, within the limits of experimental error, i>s symmetry, in contrast to that of the analogous chromium compound, which has a distorted geometry. The lack of distortion in the titanium(in) structure is ascribed to the location of the single unpaired electron in a non-deforming e orbital. [Pg.443]

CsHaaClaCOjNaOi 5 HjO, /n-Peroxo-/i-hydroxo-bis[bis(ethylenediamine)-cobalt(III)] perchlorate monohydrate, 46B, 953 CsHa aCr2NeOi uSi, H2O, A,A-/i-Hydroxo-/i-sulfatobis[bis(ethylenediam-ine)chromium(III)] dithionate hydrate, 45B, 1026 C8H3ftBr3Co2NgOi,S, DL /i-Amido-/i-sulfato-bis(bis(ethylenediamine)co-balt(III)) tribromide, 37B, 486... [Pg.468]

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